After spending $$$$ on tooling and various spending $$$$ on tooling and various prototypes, we have fitted Special Grade Flying Leads tubes with Custom Thermosetting Bases developed in-house. It is a multi-step, labor intensive process. Each lead is straightened and cleaned to ensure perfect fusion with the base pins in the silver solder, soldering bath. Process is painstakingly slow, so we will be adding a few tubes at a time to the inventory.